Download Viking Pump Technical Service Manual UDF 400 For Duplex Fuel

VIKING PUMP
Duplex Fuel Oil Packages
Field Start-Up Guide
Bulletin: UDF400
Issued: 2-Oct-06
Viking Duplex Fuel Oil Package
Field Start-Up Guide
Bulletin:
Issue:
Page:
UDF400
2-Oct-06
1
Before arriving on job site, make sure you have:
A copy of the approved drawing or certified print of the Duplex Fuel Oil Pump Package
A copy of the approved drawing of the Control Panel.
Read all of the instructions, notes, and suggestions in this bulletin to become familiar with the
start-up procedures. If you have any questions or require clarification please contact our
systems specialist, Humberto Da Silva, P.Eng. at (905) 542-8906 ext. 204 (or North America
toll free at 1-888-845-7867 ext. 0 and asked to be transferred)
When you arrive at the site confirm the following:
Check the name plate rating on the Control Panel and compare with the incoming voltage
and motor ratings.
The compound gauge should be located on the pump suction or in the suction header
(depending on pump size and duplex package configuration layout).
The pressure gauge should be on the discharge of the pump or in the discharge header
(depending on pump size and duplex package configuration layout).
Examine the suction header and confirm that the arrow cast into suction strainer points
toward the pump suction.
Confirm the sales order number stamped on the serial number plate matches the packing
slip. The serial number plate is typically located on the base plate of the unit.
On the control panel confirm the voltage, phase, horsepower, certifications and part number
stamped on the serial number plate located on the door of the panel match the specifications.
Do not open the panel door.
Observations to be made on site:
General Installation
The package should be anchor to the ground to prevent movement. If the unit is mounted on
a shelf it should be properly bolted.
All piping (suction, discharge and relief return lines) should be externally supported to prevent
pipe stresses being transferred to the unit. Ideally flexible connections should be used.
Suction Piping
If possible follow the suction pipe to the supply tank. The suction line should go around
obstacles instead of over them. This is to prevent air lock (the system will not prime if the
suction line is air locked).
If there are any valves on the suction line they should be in the open position.
With long suction pipe there should be a hand operated pump to evacuate the air from the
suction line. This pump should be piped parallel to the duplex package.
The relief valves piping can not be piped back into the suction piping. Both valves can be
piped to a common pipe. But that pipe has to be piped back to the supply tank. There should
not be any other valves in this line. If there is any they should be always in the open position.
Discharge Piping
The discharge will be piped into a day tank or directly into the diesel generator or boiler
depending on the installation.
If possible follow the discharge pipe. If there are any valves on the discharge line they should
be in the open position.
Take a look at the day tank. There should be the line from the duplex pump unit, overflow and
floats.
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
©2006 VIKING PUMP, INC., All Rights Reserved
Viking Duplex Fuel Oil Package
Field Start-Up Guide
Bulletin:
Issue:
Page:
UDF400
2-Oct-06
2
Fig. 1 – Typical F-432 & FH-432 Layout
Fig. 2 – Typical Series 4195 & Spur Gear Layout
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
©2006 VIKING PUMP, INC., All Rights Reserved
Viking Duplex Fuel Oil Package
Field Start-Up Guide
Bulletin:
Issue:
Page:
UDF400
2-Oct-06
3
Main Disconnect Switches “ON-OFF”
“POWER ON” White Pilot Light
“LEAD PUMP FAILURE” Red Pilot Light
Manual “RESET” Button
“RUN” Green Pilot Light
“RUN” Green Pilot Light
“P1-AUTO-P2”
“HAND-OFF-AUTO” Switch for P1
“HAND-OFF-AUTO” Switch for P2
Fig. 3 – Typical Control Panel Cover
Priming the Duplex Fuel Oil Package:
1.
On the Control Panel make sure both the Main Disconnect “ON-OFF” switches are in the
“OFF” position (power off).
2.
Take a look at the suction gauge to see if there is any pressure on the suction line. If there
is pressure and the application is not a flooded suction the suction line is pressurized.
Carefully remove the drain plug from the basket strainer to release the compressed air.
3.
Turn the four ball valves connected to the pressure gauges (suction & discharge gauges)
to closed position.
4.
Remove the thumbscrew from top of the lid of the basket strainers, rotate the lid counter
clockwise until the pin hits and stops, and then remove lid.
5.
Open the suction valves.
6.
Fill the strainers with diesel (the suction valves should be in open position, as you fill one
strainer the liquid level will flow in the other strainer).
7.
Reinstall the lid with the tab of the lid just to the left of the boss with the body, rotate the lid
clockwise until the holes line up, and reinsert the thumbscrew.
8.
Both the suction and discharge ball valves should be in open position.
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
©2006 VIKING PUMP, INC., All Rights Reserved
Viking Duplex Fuel Oil Package
Field Start-Up Guide
Bulletin:
Issue:
Page:
UDF400
2-Oct-06
4
9.
On the Control Panel, turn the “Hand-Off-Auto” selector switches to “Off” position for both
P1 and P2.
10.
Turn both the Main Disconnect “On-Off” switches to “ON” position (power on).
11.
Turn the “P1-Auto-P2” switch to “P1” position.
12.
Have some one observe the motor fan for the next operation.
13.
For P1 turn “Hand-Off-Auto” selector switch to “Hand” position and P1 will start.
14.
After approximate 3 seconds turn the “Hand-Off-Auto” selector switch for P1 back to “Off”
position.
15.
Confirm that the motor fan had spun in the proper rotation. If the motors are not rotating
properly have an electrician switch the motor leads and check again the rotation of the
motors.
16.
Repeat steps 11 to 15 for P2.
17.
Turn the four ball valves connected to the pressure gauges (suction & discharge gauges)
to the open position.
18.
For P1 turn “Hand-Off-Auto” selector switch to “Hand” position and P1 will start.
19.
Observe the suction compound gauge; it should start pulling a vacuum. The discharge
gauge will read 0 psi. Run P1 for no more than 2 minutes then turn it off. Place you hand
on the pump (around the seal area) and if it starts heating up, turn off the pump to prevent
mechanical seal failure.
20.
When the pumps are primed and pumping the discharge gauge will show a positive
pressure.
NOTE: If the suction line is long you may have to refill the basket strainer again. Before this is done the
suction valves will have to be in the closed position, other wise the vacuum will be lost. Then alternate
running P1 and P2 in manual mode.
NOTE: Some local codes specify a anti-siphon valve to be installed on the suction line. It is usually
installed close to the main supply tank. In some cases this valve will prevent the pumps from priming. If
the pumps don’t prime after a few attempts ask the contractor to loosen the spring in the anti-siphon valve
and then after the pumps are primed the spring can be set in order to meet local codes.
NOTE: If the installation has a flooded suction, turn the suction and discharge valves to the open
position. The suction pressure gauge should show a positive pressure. If it doesn’t follow the suction line
to the supply tank and see if all the valves are open. If all the valves are open and the pressure gauges
don’t read a positive pressure there a blockage in the line. The blockage will have to be cleaned before
running the pumps.
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
©2006 VIKING PUMP, INC., All Rights Reserved
Viking Duplex Fuel Oil Package
Field Start-Up Guide
Bulletin:
Issue:
Page:
UDF400
2-Oct-06
5
CONTROL PANEL
ƒ
ƒ
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ƒ
ƒ
ƒ
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Check the name plate rating of the Control Panel and compare with the incoming line voltage and
the motors ratings.
Adjust overload relay setting to full current rating
Check that motor protector push actuator(s) is (are) in start position.
Check that float switches are adjusted to the desired levels
Check that the controller is properly connected to the pump motors
If motors are rotating in the proper direction (as checked in steps 10 to 16 under Priming section),
and all the above checks out correctly, turn the “Hand-Off-Auto” switches for both P1 and P2 to
the “Auto” position.
Activate float switches manually and test if the pumps start and stop at desired levels.
Once the level falls below the start lead pump level float switch FL2 (as shown in diagram under
Float Controls), the pump motor is energized and the lead pump starts pumping fuel into the tank.
If the lead pump has failed and the level falls below FL2 start lead pump level float switch, the
“Lead Pump Failure” red pilot light is turned on and the lag pump motor is energized so that the
lag pump keeps pumping fuel into the fuel tank.
In order to turn off the “Lead Pump Failure” red pilot light, the manual “Reset” red pushbutton
must be pressed.
Once the level reaches the stop all pumps level float switch FL3, the pump motors are deenergized and the pumps stop.
If the alternation selector switch “P1-Auto-P2” is in the “Auto” position, the stop all pumps float
switch FL3 triggers the alternator and reverses the order of the lead and lag pumps. For
example, if P1 was the lead pump before the trigger, P2 will become the lead pump after the
trigger.
RELIEF VALVES
Checking Relief Valves Current Setting
1.
2.
3.
4.
5.
With the pump running notice the reading on the discharge pressure gauge.
Slowly close the discharge ball valve.
Operate only one pump at a time in manual mode.
The reading on the discharge pressure gauge will increase.
Make a note of the pressure reading when the valve is fully closed; this value is the pressure
relief valve setting. It should be approximate 15 to 20 psi greater than the specified pump
discharge pressure.
6. Open the discharge valve and turn the pump off.
7. If the pressure relief setting in satisfactory, repeat for the other pump.
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
©2006 VIKING PUMP, INC., All Rights Reserved
Viking Duplex Fuel Oil Package
Field Start-Up Guide
Bulletin:
Issue:
Page:
UDF400
2-Oct-06
6
Setting the Pressure Relief Valves
1. Turn the “Hand-Off-Auto” switches to “OFF” for both P1 and P2.
2. Remove the cap (item J) of the
pressure relief valve for pump P1.
3. Loosen the lock nut (item F)
4. Turn the adjusting screw (item C)
clockwise to increase the pressure
setting or counterclockwise to
decrease the pressure setting
5. Tighten the lock nut (item J)
6. Reinstall the cap (item B) onto the
valve.
7. Turn the “Hand-Off-Auto” switch for
P1 to “HAND” position.
8. Slowly close the discharge ball valve
for P1. If the pressure relief setting is
not satisfactory repeat the operation to
adjust the adjusting screw.
9. Repeat steps 1 to 8 for pump P2.
FLOAT CONTROLS
The standard duplex control panel contains NC relays to operate three float
switches (switches supplied by others) for the day tank. If more than three
floats are required, the control panel would have to be ordered with
optional NC relays.
The top float (FL3) stops both pumps, the middle float (FL2) starts the lead
pump and the bottom float (FL1) starts the lag pump.
It may not be practical to fill the day tank to test the operation of the panel. A simpler way is to have the
electrician simulate the open and closing contacts of the floats to check the operation sequence. This
procedure can be used to check the high and low level alarms (if supplied) in the panel. The electrician
can check the conductivity of the float (normally open or normally closed) to see if they are the same as
specified. In some cases there is no day tank and the pump duplex unit pumps directly into the diesel
generator or boiler. The panel will receive the signal from the generator and start the lead pump.
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
©2006 VIKING PUMP, INC., All Rights Reserved
Viking Duplex Fuel Oil Package
Field Start-Up Guide
Bulletin:
Issue:
Page:
UDF400
2-Oct-06
7
PRESSURE SWITCHES
If the duplex unit is supplied with pressure switches (either single or dual stage) they will be installed on
the discharge line. The pressure setting will be factory set, but they are field adjustable.
To simulate a low pressure condition on the discharge line, have the control panel on automatic mode
and then close the discharge valve of the pump running. The relief valve will open and the pumping liquid
will return to the supply tank. The pump will shut down and a red light will come on the panel, the time will
be that is set on the timer.
It is difficult to simulate an actual high pressure shut down. Have the electrician simulate by open or
closing the contacts in the control panel.
Field adjustment of the pressure setting can be done by the following:
Single Stage Pressure Switch – Square D – 9012-GNG2
ƒ See UDF400-1 Single Stage Pressure Switch.pdf
Dual Stage Pressure Switch – ASCO – SC10D-TG10A21
ƒ See UDF400-2 Dual Stage Pressure Switch.pdf
FLOW SWITCHES
If the duplex unit is supplied with a flow switch it will be installed on the discharge line. To simulate a low
flow condition on the discharge line, have the control panel on automatic mode and then close the
discharge valve of the pump running (either P1 or P2). The relief valve will open and the pumping liquid
will return to the supply tank. Within a few minutes (usually 1 to 3 minutes) based on the time set on the
timer, the control panel will start the other pump and the “Low Flow” Signal red lights (optional equipment
required for installation of low flow switch) will light up on the panel.
VIKING PUMP, INC. • A Unit of IDEX Corporation • Cedar Falls, IA 50613 USA
©2006 VIKING PUMP, INC., All Rights Reserved
UDF4001
Si
ngl
e St
age
Pr
essur
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B u l l e t i nN o .6 5 0 13 - 10 1- 3 5 C
A u g u s t ,1 9 9 2
et 9t
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A wARNING
HAZARDOUS VOLTAGE
CAN CAUSE SEVERE INJURY OR DEATH
To reduce the hazardof electricalshock always disconnect power
from the circuit beforeinstallingthe pressureswitch or exposing
the electricalterminalsfor maintenance.
Per ridurre il pericolodi infortunida shock elettrico,prima di
installarel'interuttorea pressioneo primi di accedereai terminali
per manutenzionetoglieresempretensionedal circuito.
Um die Gefahrvon stromschlagenzu mindern,vor Einbaudas
Druckwachtersoder Offnen das Klemmendackelszu
Wartungszweckendie Versorgungspannungabschalten.
Avant toute interventionsur ce material,couper I'alimentation
electriquede I'appareilafin d'evitertout risque d'electrocution.
ANTESde instalarel interruptora presion o ANTESde exponer las
terminaleselectricaspara daries maintenimiento,DEScoNECTELA
ENERTIAy reduzeael peligro de una sobrecargaelectrica.
MOUNTING
It is not recontmended
to mountthe switchby its pressure
connectiononly. The holes
"M" "N"
andslotsidentifiedas
or
arefor surfacemountingtheswitch.Whenconnecting
theswitchto thepressure
systempiping,tum theswitchontothepipeusinga wrench
bodyof theactuator.
on thehexagonal
Do notapplyleverage
throughtheswitchhousing.
pressure
FortypeGxO,G*G thestandard
connectionis I 14-18
NPTF.thedrysealthread
shouldsealagainsta new extemall/4 NFrf threadwithoutthe uscof sealingtapeor
compounds.
Altematepressure
connections
include:Fonn Z fc>rGNO, GNG, GRO,
GRGonly whichis l/4-l8 NFrfexternalthread,FormZ16forGNO,GNG,GRO,GRG
only is ll2-14 NFrf externaland ll4-18 NFrfF intemalthread.FonnZl8 for all G*O.
G*G isl 116-20
UNF-2A.
O 1992SquareD All RightsReserved
Page2
B u l l e t i nN o .6 5 0 13 - 10 1- 3 5 C
August,1992
(
- c r162
- 1
?.t2
.T
I
t38
3t
I
t
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55
I
I
I
t03 l
i*ze+
r/4 - TSNPTF-=
I N TT H R E A D
2
-520 6
--l i
r u R NR A D t u s = $
lr
2A
J
275
70
c 65080- 26I
Dual Dimensions
NOTE
M O U N T I N GH O L E S , ' N A
' 'N D
''
M O U N T I N GS L O T S M " A R E
SIZEDFOR #IO MOUNTING
SCREWS
lXcH€s
MailameleI
NOTE
Do not plug the 1/4 inch diameterholes on types GPO,GPG,GSO, GSG.
WIRING
Class9012TypeG pressure
switchesaresuitablefor #12,14,16AWG or 1.0-2.5mm
solidor strandedcopperwire. Tightenterminalscrewsto 6-9 in-lbf (0.7-I Nm). They
are not suitablefor use with aluminumwire. For enclosedtypesG*G grounding
(eanhing)provisionis locatedabovethe snapswitchon theenclosure
backplateandis
marked@.
The singlepole,doublethrow snapswitchcontainssinglebreakcontactsofferingone
normallyopencircuitand one normallyclosedcircuit.Thesecircuitsare electrically
separatebut arenot for useon circuitsof oppositepolarity.For properwiring, refer to
thewiringdiagramonthesnapswitchnottheterminalidentification
on thesnapswitch.
SET POINT
ADJUSTMENTS
Range Adjustment
The pressure
switchis setat the factoryto theoperatingpoint(s)markedon theoutside
of the mechanismhousing.It is good practiceto cyclethe switchto determineactual
operatingpointsbeforeproceedingwith readjustment.
Referto the illustrationon page
2 for locationof adjustment.
Fornon-adjustable
differential
typesGRo,GRG,GSo,GSG,GTo, GTG
The rangeadjustment
may be usedto seteithersetpointandcompletesthe adjustmcnt
To increase
sequence.
the operatingpoints;with the switchmountedas shownin the
illustrationon page2 andfacingthe switch,placea flat bladedscrewdriverin the slots
of rangeadjustmentnut (A) androtatefrom right to left.
Foradjustable
differential
typesGNO,GNG,GPO,GpG,GeO,GOG
Therangeadjustment
is usedto setthedecreasing
setpointandmustbemadefirst.This
adjustmentis madein the samemannerasfor non-adjustable
differentialtypes.
O 1 9 92S quareD A l l R i ghtsR eserved
Page3
B u l l e t i nN o .6 5 0 13 - 10 1- 3 5 C
August1
, 992
Differential Adiustment
REPLACEMENT
PARTS
For types GNO, GNG, GPO, GPG, GQO, GQG
of the set point on increasingpressureis available.This
adjustment
An inclependent
pressure
setpointhasbeenadjusted.
afterthedecreasing
must
be
perfonned
adjustment
The
point
on
increasingpressure.
raise
set
to
the
screw
clockwise
(B)
Tum adjusting
pressure
adjustrnent.
not
this
is
affected
by
point
decreasing
set
parts.Class,Typ", andForlr of srvitch
Note:Whenorderingany of thesereplacement
on whichthereplacement
is to be usedmustbe spccifiedwith theorder.
Table 2
Item Description
2
Class Order Type Form Used On
9998
PC 265
G N O ,G N G ,G R O ,G R G - 1
DiaphragmAssembly
9998
9998
PC 266
PC 267
G N O ,G N G ,G R O ,G R G - 3
G N O ,G N G ,G R O ,G R G - 4
DiaphragmAssembly
9998
9998
PC 268
PC 269
G N O ,G N G ,G R O ,G R G - s
G N O ,G N G ,G R O ,G R G - 6
DiaphragmActuatorAssy 9 9 9 8
9998
PC177
P C 178
G P O ,G P G ,G S O ,G S G - 1
G P O ,G P G ,G S O ,G S G - 2
PistonActuatorAssv
9998
9998
9998
9998
PC 270
PC271
PC 272
P C 273
GQO,GOG ,G TO ,G TG - 1
GQO,GQG ,G TO ,G TG - 2
GQO,GQG,GTO,GTG-3
GQO.GQG,GTO.GTG.4
EnclosureAssemblv
9049
U E -1
ConvertsType G.O to G.G
DiaphragmAssembly
COPYRIGHT NOTICE
@ 1 9 9 2b y S q u a r eD C o m p a n ya, l l r i g h t sr e s e r v e dT. h i s b u l l c t i nm a y n o t b e c o p i e di n w h o l eo r i n
to any other media without thc writtcn perntissionof SquareD Contpany.
part,or transf'erred
PLEASE NOTE:
o n l y b y q u a l i f i e del c c t r i c aIl n a i n t e n a n cpec r s o n r l c al .n dt h i s
E l e c t r i c a l e q u i p m esnht o u l db e s e r v i c e d
d o c u m e n st h o u l dn o t b e v i e w e da s s u f f i c i e n ti n s t r u c t i o nt o r t l i o s ew h o a r en o t o t h e r w i s eq u a l i f i e c l
t i s c u s s e dA. l t h c l u g hr e a s o n a b lcca r ch a sb e en t a k c n
t o o p e r a t es, e r v i c eo r n t a i n t a i nt h ee q u i p m c n d
a n da u t h o r i t a t i vien f o r m a t i o ni n t h i sd o c u m c n tn, o r e s p o n s i b i l i tiys a s s L r r n cbdy
t o p r o v i d ea c c u r a t e
a sr i s i n go u t o f t h e u s eo f t h i s m a t c r i a l .
S q u a r eD f o r a n y c o n s e q u e n c e
e 1 992S quareD A l l R i ghtsR eserved
Page4
UDF4002
DualSt
age Pr
essur
e Swi
t
ch
Wiring
Winng must comply rrth loc-l codcs end thc Natkroal EhctricalCode. All
snrrtchenclsurer arc prcrrdcd witb two 3/,t' NPT conduit hubswith one
pluggedrhcn not in r.rsc.It is recommendedthat a flexibleconduit connection bc urd. If ngid conduit is used,do not considerit or use it as a means
of supportlmounting). For generalpurpoceandwalertighlconstruction,the
s*'itch cover is remored by looseningtwo screpsthen tvristingslightlyand
lifting. For exploeionprmfconstruction,the cover unscrews.When explosionproofcoveris replaced,torque coverlo 135 + 10 in-lbs [10,7 r- 1,1
Nml. Use No. 14 AWG copperwire raled for 60oC minimum. All switches
havea groundingscrewand clamp in lhe enclosure. For factorywiredswitch,
black leadiscommon,red leadis normallyopen,blue leadis normallyclosed,
and the green lead wire is a ground.
IMPORTA\iT: Electrical load must be within rang€statedon nameplate.
F a i l u r et o s l a y* i t h i n t h e e l e c t r i c arl a n g eo f t h es * i t c h r a t i n gm a vr e s u l ti n
dt-ra" !o or poematurr failurt of electrkal sritch.
rll
CAUTION: IlordcrrrcrcsCwscrwffrrfrrlr-E
A
vien making terminal connections. Vyhenconncc{ionserc medc, be surc
th€re is no stnesson the wirc leads. Either condition mey caus€malfunction
ol switch.
ELECTRICAL
RATINGS
Standald
slMlch
Ratlng
Ratlngs for
Induslrlal Conlrols and
Temp€ralur€ lndlcalhg and
Begulatlng Equlpment
Ratlngs tor Llmll Controls and
Pressure OD€rat9d S\Mtches
SY/ltch
Unlt
15Amp6Res.,125 VAC
10AmpsRes, 25OVAC
l/4 HP 125VAC
1/2 HP 250 VAC
112AmpRes.,125VDC
1/4Amp B€s.,250vOC
5 Amps Ros.,I 251250VAC
1/8HP 125VAC
1/4 HP 250 vAc
0.4AmDRes..125VDC
Schematic
SPDT
N.O.
Thermal Well (Optional Feature)
A thermalwell may be usedfor capillarl and bulb (remote)or direct probe
1.aal) lemperalure transducen.The thermalwell affordsprolection for the
snsing bulb and allowsremovalof the rnsing bulb while maintaininga
Fressuretight vessel.When installingrnsrng bulb in lhermal well, be sure
riratit is fully inserted. Where a thermal rcll alreadyexists,jam nuts may
bc obtainedlo adaptthe capillaryand bulb to the existingthermal well. The
enstingthermalwell musl be for a 3 8' dramelerrnsing bulb.
Union Connector (Optional Feature)
A u n i o nc o n n e c l o*rr l l a l l o * d i r e c lm o u n t i n go f t h er n s i n g b u l b i n t h ef l u i d
b e i n gc o n t r o l l e d . I n s l a l lu n i o n i n t o p i p i n gc o n n e c t i o nb e f o r et i g h t e n i n g
uniononlo bulb. For maxrmumprrformance, the bulb shouldbe inserted
in the union conneclionso lhal the end of the sensingbulb is evenwith the
torquewhentighlenendof the union conneclornut. Do not applyexcessive
ing union connectornul.
Adjustment (Signal Setting) of Tlvo-Stage Dual A{iust'
ment Switch
'Io
(signalsetting) a 7116" wrench and a pressureor
make adjustments,
lemperalure gage (within suitable range) are required. If electrical
conneclion(lo line of final application)of the swrtchis not desirable,a
batlery powered tesl lamp or ohm meler may be used. hessure or
temperalure rangescalesshouldbe usedfor initial signalsetting. Thesewill
be accuratewithin 5%. l,rn .:rn lock ring and lurn adjustingnul until red
line is evenwilh the desiredrange. For exact signalsetting,proceedas
follows:
WARNING: To prevent the possibility of personal
A
iqiury or property damage, turn ofT electrical power when
making permanent electrical connections to switch.
Adjustrnent (Signal Setting) of Normally Closed or
Normally Open S*itch, Increasing Signal (Refer to Figure 2)
(signal
whenadjuslment
isin thelineof finalapplication
1. If the swrtch
setting)is made,be sureswilchcan be lesl operatedwithoul affecting
o l h e re q u i p m e n t .
2. l-oosen lock nng on adjuslmenlnul andlurn low signaladjustmentnul
adiuslment fu! down using a 7/16"
, full uprrards and high sig,oa-l
\/
wlcnch.
CAUTION: Adjusting nut wilt turn easily until it hits a stop. Do not
A
over torque; over torquing may caus€ internal damage resulting in malfunction.
3. Remove switch cover to gain access lo snap switch.
l4/iing for cover removal.
See seclion on
4. Follow the step in the chart below lo make signal setling:
NORMALLY CLOSED
Adlustment
Procedur€
INSTALI.-{TIONOF TEMPERATURE
TRANSDUCERS
Direct Probe
The directprobe(local)temperalurelransduceris providedwith 1/2" NPT
conneclion.When inslalling,do nol useswilchunit asa leverfor lightening.
Use wrenchingflats provided at baseof transducerfor tighlening.
and Bulb
are providedwilh
The capillaryand bulb (remole)temperalurelransducers
"
gulb.
a l e n g t ho f c a p i l l a r ya n d a 3 / 8 d i a m e t e rs e n s i n b
Capillary
CALTIOIi: Do not bend capillary at sharp angles.For properoperA
ation,be suresensin3bulb is completelyimmersedin fluid and not in contact
with heatingelementor anythint that would directly affect the temp€rature
of the fluid being scnsed.
1 Slarthg at zsro slgnal, conn€ctlest lamp
lo common.
2
Apply deslred
acluatlon slgnal. Then
oft
slgnal
back
untll
adlustlng nul
swltch acluales.
NORMALLY OPEN
Tesl Lamp
On-Ofl
SrMlch
Tormlnal
Tesl Lamp
On-Olt
NC
On (Clo6€d
Clrcun)
NO
Olf (Open
Clfcutl)
NC
Oll (Open
Clrcult)
NO
SrMtch
Termlnal
:
-ow€f srgna lo
roetualixl
d€dreo
slgnal.
Cn iclo's€c
Clrcun)
|lo
Form No. V5736F2
On (Clo€ed
Clrcull)
dl
tooen
Clrcutl)
5 . Cyclebetween signalsetlings and make minor adjustmentsto adjusling
nuts as required lo achievethe exactsignalsetting.
Afler selling hasbeen made,make permanenleleclricalconnections.
A S C O Valves
Page 2 o{ 4
V
ASCOLECTRIC limited
B R A N T F O R DO
. NTARIO
Adustment (Signal Setting) of Normally Closcd or
Normafly Open Switch, Decreasing Signal
(Referto Figure 2)
wiring and pipe conneclion should be made so that svrlch can b€ lesl
operated withoul affecting olher equipment.
1. If the wnlch is in the line of final applicationwhenad;ustnrntlsignal
selting)is made,be sureswitchcan be lest operated rrthout affecting
other equipment.
J
2. Loosen lock ring on adjustmentnuts and lurn lory signalad;ustmenl
nut fullupwardsand high signaladjustmentnul slighttybeyonddesired
actuationsettingusinga 7/16" wrench.
CAUTION: Adjustmentnut will turn easilyuntil it hits a stop. Do
A
not over torque;over torquing may causeinternal damageresultingin nalfu nction.
]
RemOVC$i:.'h
i|'"nng
C a r r c r' \ i i r i n
3iCcr. l,'.::rl
.rr:lCh
Sce:t'Ctr()nOn
.
Periodic inspeclion of the switch, externalsur{aces only, should r*- carried out. Swilch should be kept clean and free from painl. forergn matler, corrosion, icing, and freezing conditions.
.
K e e p t h e m e d i u m e n l e n n g t h e l r a n s d u c e r a s f r e e a s f x - n s i b l ef r o m d r r l
a n d f o r e i g n m a l en a l
Causesof Improper Operation
S * i t c h * r l l n t - r al c l u s l e ( ) r a c l u 3 1 e 5a n d r e : i i u - i t c s u n J ( \ i i - 3 t ' l c
.
(lreck lca.Js to srrtch [Je surr' ther
Inco<rtct Elcctrkd C6o.cti(r:
are prope rly connecled. S*rtch rs marked .\O for \ormalh Oprn..\(for Normalty Clced and C for Common.
.
Check electrical power supply to switch.
Control Circuic
fbultl
Check for loose or blown fuses, open-circuiled or grounded wires,
i t x r s cc t r n n e c t i o n sa t t e r m i n a l h i o e ' ko r s q ' i t c h S t ' e t r a n r t : p l a l cf o r c ' l e c t r i c a l r a t r n ga n d r a n q c .
.
('heck pressure In s\slem *rth surlable pressure
Incorrtct Prcsurt:
gaRe. hessure musl br srlhrn range sprcrfiedon nameplale
.
A d j o s r r n t : C h e c k a d j u s t m en l n u t f ( t r p r ( ) f r r s r l l r n q R e f e r
lrqrtct
t o a d ; u s t m en l t n s t r u c l i o n s .
.
Er&ynrl lrakage: Check lo re that bolts r{tholdrng tranvlucer to
p r e s s u r es w i l c h a r e p r o p e r l y t o r q u e d l o 8 0 * 1 [ )r n - l b s [ 9 . l t * 1 . 1 \ m ]
I f b o i t s a r e l i g h l a n d l e a k a g ei s s l i l l e v i d e n t , r e p l a c el r a n v l u c er . R e f e r
to paragraph on Assembly'of Switch Unit and Transducer L'nit
.
Ercessive Vibration or Surges Causing Switch to Actuak and R.eectua t e : C h e c k f o r f l u c t u a l r o n si n q r s l e ma n d i n s t a l lp r e s s u r es u r g es u p p r e s s o r . C h e c k s l r l c h m o u n t i n g a n d b e s u r e l h e r e i s n o e x c e s s r vver b r a l r o n .
.
Incorrtrt T?mprraiurc: Check lemfEralure in qstem *rth surlable
lhermometer. Temprrature musl be *rth;n rance spcrfied on nameplate. Check locatron of capillary and bulb for rncorrect mountlng,.
Refer to pnragraphs on Insullation Of Temperature Transducen.
fur COv€r re rotrral
4. Follo* stcpsin charr bclo* to makc signalrtting.
NORMALLYCLOSED
Adluslm€nt
Procedure
Swllch
T€rmlnal
1. Startlngwilh Inltlalslgnal
above deslred actuatlon
s€ttlng, connect t€sl lamp
lo common.
NC
2. D€crease slgnal lo
d€slred acluatlon slgnal.
Th6n advanc€ adJustlng
nul untll swltch acluales.
NC
3. Incraas€ slgnal locheck
roacluallon slgnal.
NC
ToslLamp
On-Ofi
t{c)RMALtY Cp€\
S\./tlch
Termlnal
ofl
(Open
Clrcull)
^to
On
(Closed
Clrcull)
NO
otf
(Open
Clrcun)
NO
T6l
i_.Jng
Cn-Clt
Or
tfu.d
CrqJn)
dl
rOgcn
Qtrattl)
O;t
(Clo3€d
Clrcun)
5. Clcle between actuation and reactuation signals and make minor
adjustment to adjusling nuls as required to achieve the exact signal
seltinqs.
6. Alter scltrngs haw bccn ma&, trghten lock rings and make perrnanenl
electrical conneclions.
yl
Testingof Installation
If the adjustment of the switch has been made outside of the line of final
applicalion, the swilch should be retesled when inslalled in lhe line of final
application. Follow adjustment instructions. Be sure swilch can be test operated without affecting olher equipmenl.
MAINTENANCE
If lhe ope ration of the switch cannol be correcled by the above means, lhe
enlire switch unit should be replaced or an aulhorized factory represenlalive
consulted.
Color Code ldentification
W t r e n t h e s * i l c h c o v e r r s r e m o v e d . t h c s * r t c h u n r t m a v h e i d e n t i f i e db y t h e
color of lhe sealanlused on the lmknuts of the snap s*itch. The color of
l h e s e a l a n t* - i l l c o r r e s p r c n dd i r e c t l y t o t h e t h i r d d r g r l o f t h e s w r t c hc a t a l o g
number.
Third Digit In
Catalog liumber
Sealant Color Used On
Snap Switch Locknuts
Yellow
I
I
Green
WARNING: To prevent the possibility of personal
A
iqiury or property damage, turn off electrical power and
depressurize switch unit b€fore inspection or removal.
IMPORTANT:
Switchis notfieldrepairable.Theswitchmustbereturned
to the factory (Automatic Switch Company. Florham Parlq New Jersey) or
serviced only by an authorizd
factory repres€ntative. Address all service
inquiries to Automatic Switch Company, 50-60 Hanover road, florham
Park, New Jersey 07932, Valve Service D€partment. The only mainte nance
which may be performed on the two stage dual adjustment switch is changing
the setting of the adjusting nut and replacement of the transducer unit.
Replacement of transducer should be done only if external leakage is
evident.
PreventiveMaintenance
.
Whilein service,
at
n desired
signals)
operalethes\r'itch
tcyclebenree
leasl once a month lo insure prop€r ope ralion. If necessary,electrical
3
Red
4
Blue
Example:If lhe sealantcolor on lhe snapswilchwasred, thiswould mean
thal the third digit in the pressureswitchcalalognumberwouldbe 3, possibly
SC30D. It would not be, for example; SCA0D, SCtrOD,or SC@0D.
T\)R, SERYICE REPI-ACEMf,NT OR NEW TRANSDUCER
Consult Factory,or Aulhorized Faclory Represenlativeor Dislributors
ORDERI\G I:iFf)RMATIO\
For TWo-StageDual AdjustmentSwitchor New Thansducer
When Ordering, SpecifyCatalogNumbers, Fluid, PressureRange,
TemperatureRange,Serial Numbers,and hoof
hessure or Rated OverrangeTemperalure.
NAMEPI-ATES ARE LOCATED ON SWITCH COVER
AND BOTTOM OF TRANSDUCER.
ASCOValves
ASCOLECTRIClimited
oNrARlo
BRANTFoRD
Form No. V5736R2
Page 3 of 4
EnlargedlsometricViewShowing
AdjustingNutAnd LockRing
Rightside, high signal
adjustingnut set at 80 psig
CAUTION
Adjusting
nutwill turn
until
it
hitsa stop.
easily
DO NOTOVERTORQUE
Left side, low signal adjustingnut set at 20 psig
adjustingnut
(7116" wrench)
lock ring
(tightedsecurely)
FrontView LookingDirectlyat
Two-StageDual AdjustmentSwitch
(PressureScalesShown)
Setting)of Two-StageDual
Explosionproof
SwitchEnclosure
Shown
IMPORTANT
The thlrd dlgit in catalog No.
on the switch unit and transducer
unil must be identical.
See examplebelow.
switch cover
Torqueswitch cover to
1 3 5 +1 0 i n - l b s[ 1 5 , 3+ 1 , 1N m ]
two-stagedualadjustment
switchunit
example
CatalogNo. SCB2D
A
T
I
A
314" NPTfor conduit
bothends
connection
- l--1
.dj,illflJ$,;ou.,
\-J
transducergasket
(used on Watertightor
C onstructi ononl y)
E xpl osi onproof
Torquebolts(4)in a
crisscross
mannerto
80 +10in-lbs[9,0+1,1Nm]
transducerunit
examPle
Catalog No. TEE0A/+4
tI
bolt 1+;Figure3. SwitchUnit and TransducerUnit to be Assembled.
ASCOValves
Page 4 of 4
Form No. V5736R2
PRINTEDIN CANADA
ASCOLECTRIClimited
BRANTFoRD,
oNrARto
t\}-
rt